Question

in a two digit number, the tens digit is twice the units digit. if the sum of its digits is 9 then the number is​

Answer 1

Step-by-step explanation:

let the unit digit be x

there4 tens digit =2x

x+2x=9

3x=9

x=3/9

x=3

there4 unit digit is 3

and...

tens digit is 2x = 2×3 = 6

check ....

the sum of 6 and 3 is 9 .

there4 the no. is 63.